JP2012244239A5 - - Google Patents
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撮影レンズ光学系と絞りと撮像素子を有し、前記撮像素子が画像信号を取得することで撮影画像データを取得する撮像装置において、第１記憶手段と、第１計算手段と、補正手段と、第２記憶手段と、制御手段とを有し、前記第１記憶手段は、撮影画像データの信号値のむらを補正するための補正項を、補間計算に適する複数のパラメータに対応させて記憶し、前記第２の記憶手段は、撮影条件に対応する記憶に適する複数のパラメータを記憶し、前記第制御手段は、実際に撮影した際の撮影条件に対応する記憶に適する複数のパラメータから、補間計算に適する複数のパラメータを計算し、前記第１計算手段は、前記第１記憶手段に記憶されている補正項のうち、前記制御手段が計算した、撮影画像データを取得した際の前記撮影条件の、補間計算に適する複数のパラメータと近い補正項を用いて撮影画像データの補正項を補間計算し、前記補正手段は、前記第１計算手段が計算した撮影画像データの補正項を用いて、撮影画像データの信号値のむらを補正することを特徴とする撮像装置を提供する。 In an imaging apparatus that has a photographic lens optical system, a diaphragm, and an imaging element, and that acquires the captured image data by acquiring an image signal, the first storage unit, the first calculation unit, the correction unit , A second storage unit, and a control unit , wherein the first storage unit stores a correction term for correcting the unevenness of the signal value of the captured image data in association with a plurality of parameters suitable for the interpolation calculation ; The second storage means stores a plurality of parameters suitable for storage corresponding to the shooting conditions, and the second control means performs interpolation calculation from a plurality of parameters suitable for storage corresponding to the shooting conditions at the time of actual shooting. A plurality of parameters suitable for the calculation, and the first calculation means calculates the imaging condition when the captured image data obtained by the control means among the correction terms stored in the first storage means is acquired. , During multiple parameters and close the correction term a correction term of the photographic image data by interpolation calculation using suitable calculation, the correction means using the correction term of the photographed image data to which the first calculation means has calculated captured image Provided is an imaging device that corrects unevenness in signal values of data.
撮影レンズ光学系と絞りと撮像素子を有し、前記撮像素子が画像信号を取得することで撮影画像データを取得する撮像装置において、第１記憶手段と、第２記憶手段と、制御手段と、第１計算手段と、補正手段とを有し、前記第１記憶手段は、撮影画像データの信号値のむらを補正するための補正項を、補間計算に適する複数のパラメータに対応させて記憶し、前記第２記憶手段は、撮影条件に対応する撮影条件の光線角度、撮影レンズの種類、ズームポジション、合焦位置、絞り径に関するパラメータ、コンバータの有無及び種類、フィルタの有無及び種類、色収差、像面湾曲、歪曲収差、レンズシフト方式手振れ補正レンズのシフト量、センサシフト方式手振れ補正センサのシフト量、ティルト・シフトレンズのティルト・シフト量、ソフトフォーカスレンズのソフト量、光源の種類、撮影レンズの透過率、撮影レンズのコーティング、センサの温度、露光時間のうち、少なくとも２つ以上の項目を記憶し、前記制御手段は、実際に撮影した際の撮影条件の光線角度、撮影レンズの種類、ズームポジション、合焦位置、絞り径に関するパラメータ、コンバータの有無及び種類、フィルタの有無及び種類、色収差、像面湾曲、歪曲収差、レンズシフト方式手振れ補正レンズのシフト量、センサシフト方式手振れ補正センサのシフト量、ティルト・シフトレンズのティルト・シフト量、ソフトフォーカスレンズのソフト量、光源の種類、撮影レンズの透過率、撮影レンズのコーティング、センサの温度、露光時間のうち、少なくとも２つ以上の項目から、補間計算に適する複数のパラメータを計算し、前記第１計算手段は、前記第１記憶手段に記憶されている補正項のうち、前記制御手段が計算した、撮影画像データを取得した際の前記撮影条件の、補間計算に適する複数のパラメータ近い補正項を用いて撮影画像データの補正項を補間計算し、前記補正手段は、前記第１計算手段が計算した撮影画像データの補正項を用いて、撮影画像データの信号値のむらを補正することを特徴とする撮像装置を提供する。
In an imaging apparatus that has a photographic lens optical system, a diaphragm, and an imaging device, and that captures captured image data by the imaging device acquiring an image signal, a first storage unit, a second storage unit, a control unit , A first calculation unit and a correction unit, wherein the first storage unit stores a correction term for correcting unevenness of the signal value of the captured image data in association with a plurality of parameters suitable for the interpolation calculation ; The second storage means includes a light angle of a photographing condition corresponding to a photographing condition, a type of a photographing lens, a zoom position, a focus position, a parameter relating to an aperture diameter, presence / absence of a converter, presence / absence / type of a filter, chromatic aberration, image Surface curvature, distortion, lens shift type image stabilization lens shift amount, sensor shift type image stabilization sensor shift amount, tilt shift lens tilt shift amount, software At least two or more items are stored among the soft amount of the focus lens, the type of light source, the transmittance of the photographing lens, the coating of the photographing lens, the temperature of the sensor, and the exposure time, and the control means actually photographed ray angle of shooting conditions when the kind of the taking lens, a zoom position, focus position, parameters relating to aperture diameter, the converter of the presence or absence and the type, presence and type of filter, the chromatic aberration, curvature of field, distortion, the lens shift system hand shake Correction lens shift amount, sensor shift type image stabilization sensor shift amount, tilt shift lens tilt shift amount, soft focus lens soft amount, light source type, photographic lens transmittance, photographic lens coating, sensor temperature, of the exposure time, at least two or more items, a plurality of paths suitable for interpolation calculation The meter calculates the first calculation means, among the correction terms stored in the first storage means, the control means has calculated, of the photographing conditions when acquiring the captured image data, the interpolation calculation The correction term of the photographic image data is calculated by interpolation using correction terms close to a plurality of suitable parameters , and the correction means uses the photographic image data correction term calculated by the first calculation means to calculate the signal value of the photographic image data. Provided is an imaging device that corrects unevenness of the image.
前記第２記憶手段は前記撮影条件に対応する絞り中心光線角及び絞り周辺光線角をあらかじめ記憶し、前記第１記憶手段は、補正項を光束中心光線角と絞り径に関するパラメータとに対応させて記憶し、前記制御手段は、実際に撮影した際の絞り中心光線角及び絞り周辺光線角と、絞り径に関するパラメータから、光束中心光線角を計算し、前記第１計算手段は、前記第１記憶手段に記憶されている補正項のうち、前記制御手段が計算した、撮影画像データを取得した際の前記撮影条件の、光束中心光線角及び絞り径に関するパラメータと近い補正項を用いて撮影画像データの補正項を補間計算することを特徴とする請求項１又は請求項２に記載の撮像装置を提供する。
The second storage means stores in advance the aperture center ray angle and aperture periphery ray angle corresponding to the imaging condition, and the first storage means associates the correction term with the parameters relating to the beam center ray angle and the aperture diameter. And the control means calculates a light flux center ray angle from parameters relating to the aperture center ray angle and the aperture periphery ray angle at the time of actual photographing, and the aperture diameter, and the first calculation means stores the first memory. Among the correction terms stored in the means, the photographic image data using the correction terms calculated by the control means, which are close to the parameters relating to the light beam center ray angle and the aperture diameter of the photographing condition when the photographed image data is acquired. The image pickup apparatus according to claim 1, wherein the correction term is calculated by interpolation.
前記第２計算手段は、基準となる被写体を撮影することで取得した調整画像データから、
撮影画像データの信号値の比を補正する為の補正項を計算する
ことを特徴とする請求項１乃至請求項３のいずれかに記載の撮像装置を提供する。
The second calculation means, from the adjustment image data acquired by shooting the reference subject,
To provide an imaging apparatus according to any one of claims 1 to 3, characterized in that to calculate the correction term for correcting the ratio of the signal value of the photographed image data.
前記第２計算手段は、基準となる被写体を撮影することで取得した調整画像データを複数のブロックに分割し、ブロック毎のゲインを計算し、前記ブロック毎のゲインの集合である補正項を予め計算し、前記第１記憶手段は、前記第２計算手段が計算したブロック毎のゲインの集合である補正項を、調整画像データを取得した際の前記撮影条件に対応させて記憶することを特徴とする請求項４に記載の撮像装置を提供する。
The second calculation means divides adjustment image data acquired by photographing a reference subject into a plurality of blocks, calculates a gain for each block, and sets a correction term that is a set of gains for each block in advance. The first storage means calculates and stores a correction term, which is a set of gains for each block calculated by the second calculation means, in correspondence with the shooting conditions when the adjusted image data is acquired. An imaging apparatus according to claim 4 is provided.
前記基準となる被写体は、輝度及び色が均一な面であることを特徴とする請求項４又は請求項５に記載の撮像装置を提供する。
Subject to be the reference is to provide an imaging apparatus according to claim 4 or claim 5, wherein the luminance and the color is uniform surface.
前記第１計算手段は、撮像素子の特性に起因する撮像面の受光特性の非均一性についての補正項を計算し、前記補正手段は、前記第１計算手段が算出した撮像素子の特性に起因する撮像面の受光特性の非均一性についての補正項を用いて補正を行うことを特徴とする請求項１乃至請求項６のいずれか一項に記載の撮像装置を提供する。
The first calculating means calculates a correction term for non-uniformity of the light receiving characteristics of the imaging surface due to the characteristics of the imaging element, and the correcting means is caused by the characteristics of the imaging element calculated by the first calculating means. to provide an imaging apparatus according to any one of claims 1 to 6, characterized in that correction is performed using the correction term for the non-uniformity of the light receiving characteristic of the imaging surface to be.
装着するレンズ光学系の交換が可能な撮像装置であり、前記第１記憶手段が前記撮像装置内に配置されていることを特徴とする請求項１乃至請求項７のいずれか一項に記載の撮像装置を提供する。
Replacement of the lens optical system mounting are possible imaging apparatus, according to any one of claims 1 to 7, characterized in that said first memory means is disposed within said imaging device An imaging device is provided.
装着するレンズ光学系の交換が可能な撮像装置であり、前記第１記憶手段が装着するレンズ内に配置されていることを特徴とする請求項１乃至請求項７のいずれか一項に記載の撮像装置を提供する。 Replacement of the lens optical system mounting are possible imaging apparatus, according to any one of claims 1 to 7, characterized in that said first memory means is disposed within the lens mounting An imaging device is provided.
Claims (9)
前記撮像素子が画像信号を取得することで撮影画像データを取得する撮像装置において、
第１記憶手段と、第１計算手段と、補正手段と、第２記憶手段と、制御手段と
を有し、
前記第１記憶手段は、撮影画像データの信号値のむらを補正するための補正項を、補間計算に適する複数のパラメータに対応させて記憶し、
前記第２の記憶手段は、撮影条件に対応する記憶に適する複数のパラメータを記憶し、
前記第制御手段は、実際に撮影した際の撮影条件に対応する記憶に適する複数のパラメータから、補間計算に適する複数のパラメータを計算し、
前記第１計算手段は、前記第１記憶手段に記憶されている補正項のうち、前記制御手段が計算した、撮影画像データを取得した際の前記撮影条件の、補間計算に適する複数のパラメータと近い補正項を用いて撮影画像データの補正項を補間計算し、
前記補正手段は、前記第１計算手段が計算した撮影画像データの補正項を用いて、撮影画像データの信号値のむらを補正する
ことを特徴とする撮像装置。
It has a taking lens optical system, a diaphragm, and an image sensor,
In the imaging device that acquires captured image data by the image sensor acquiring an image signal,
First storage means, first calculation means, correction means , second storage means, and control means ,
The first storage means stores a correction term for correcting unevenness of the signal value of the captured image data in association with a plurality of parameters suitable for interpolation calculation ,
The second storage means stores a plurality of parameters suitable for storage corresponding to shooting conditions,
The first control means calculates a plurality of parameters suitable for interpolation calculation from a plurality of parameters suitable for storage corresponding to the photographing conditions at the time of actual photographing,
The first calculation means includes a plurality of parameters suitable for interpolation calculation of the photographing conditions when the photographed image data is acquired, calculated by the control means , among the correction terms stored in the first storage means. Interpolate the correction term of the captured image data using the near correction term,
The image pickup apparatus, wherein the correction unit corrects the unevenness of the signal value of the photographic image data using the correction term of the photographic image data calculated by the first calculation unit.
前記撮像素子が画像信号を取得することで撮影画像データを取得する撮像装置において、
第１記憶手段と、第１計算手段と、補正手段と、第２記憶手段と、制御手段と
を有し、
前記第１記憶手段は、撮影画像データの信号値のむらを補正するための補正項を、補間計算に適する複数のパラメータに対応させて記憶し、
前記第２記憶手段は、撮影条件に対応する撮影条件の光線角度、撮影レンズの種類、ズームポジション、合焦位置、絞り径に関するパラメータ、コンバータの有無及び種類、フィルタの有無及び種類、色収差、像面湾曲、歪曲収差、レンズシフト方式手振れ補正レンズのシフト量、センサシフト方式手振れ補正センサのシフト量、ティルト・シフトレンズのティルト・シフト量、ソフトフォーカスレンズのソフト量、光源の種類、撮影レンズの透過率、撮影レンズのコーティング、センサの温度、露光時間のうち、少なくとも２つ以上の項目を記憶し、
前記制御手段は、実際に撮影した際の撮影条件の光線角度、撮影レンズの種類、ズームポジション、合焦位置、絞り径に関するパラメータ、コンバータの有無及び種類、フィルタの有無及び種類、色収差、像面湾曲、歪曲収差、レンズシフト方式手振れ補正レンズのシフト量、センサシフト方式手振れ補正センサのシフト量、ティルト・シフトレンズのティルト・シフト量、ソフトフォーカスレンズのソフト量、光源の種類、撮影レンズの透過率、撮影レンズのコーティング、センサの温度、露光時間のうち、少なくとも２つ以上の項目から、補間計算に適する複数のパラメータを計算し、
前記第１計算手段は、前記第１記憶手段に記憶されている補正項のうち、前記制御手段が計算した、撮影画像データを取得した際の前記撮影条件の、補間計算に適する複数のパラメータと近い補正項を用いて撮影画像データの補正項を補間計算し、
前記補正手段は、前記第１計算手段が計算した撮影画像データの補正項を用いて、撮影画像データの信号値のむらを補正する
ことを特徴とする撮像装置。
It has a taking lens optical system, a diaphragm, and an image sensor,
In the imaging device that acquires captured image data by the image sensor acquiring an image signal,
First storage means, first calculation means, correction means , second storage means, and control means ,
The first storage means stores a correction term for correcting unevenness of the signal value of the captured image data in association with a plurality of parameters suitable for interpolation calculation ,
The second storage means includes a light angle of a photographing condition corresponding to a photographing condition, a type of a photographing lens, a zoom position, a focus position, a parameter relating to an aperture diameter, presence / absence of a converter, presence / absence / type of a filter, chromatic aberration, image Surface curvature, distortion, lens shift type image stabilization lens shift amount, sensor shift type image stabilization sensor shift amount, tilt shift lens tilt shift amount, soft focus lens soft amount, light source type, shooting lens Store at least two items of transmittance, photographing lens coating, sensor temperature, exposure time,
The control means includes a light angle of a photographing condition when actually photographing , a photographing lens type, a zoom position, a focus position, a parameter relating to an aperture diameter, presence / absence of a converter, presence / absence of a filter, chromatic aberration, image plane Curvature, distortion, lens shift method image stabilization lens shift amount, sensor shift method image stabilization sensor shift amount, tilt / shift lens tilt / shift amount, soft focus lens soft amount, light source type, transmission through the taking lens Calculate multiple parameters suitable for interpolation calculation from at least two items of rate, taking lens coating, sensor temperature, exposure time ,
The first calculation means includes a plurality of parameters suitable for interpolation calculation of the photographing conditions when the photographed image data is acquired, calculated by the control means, among the correction terms stored in the first storage means. Interpolate the correction term of the captured image data using the near correction term,
The image pickup apparatus, wherein the correction unit corrects the unevenness of the signal value of the photographic image data using the correction term of the photographic image data calculated by the first calculation unit.
前記第１記憶手段は、補正項を光束中心光線角と絞り径に関するパラメータとに対応させて記憶し、
前記制御手段は、実際に撮影した際の絞り中心光線角及び絞り周辺光線角と、絞り径に関するパラメータから、光束中心光線角を計算し、
前記第１計算手段は、前記第１記憶手段に記憶されている補正項のうち、前記制御手段が計算した、撮影画像データを取得した際の前記撮影条件の、光束中心光線角及び絞り径に関するパラメータと近い補正項を用いて撮影画像データの補正項を補間計算する
ことを特徴とする請求項１又は請求項２に記載の撮像装置。
The second storage means stores in advance an aperture center ray angle and an aperture periphery ray angle corresponding to the imaging condition,
The first storage means stores the correction term corresponding to the light beam center ray angle and the parameter relating to the aperture diameter,
The control means calculates the light flux center ray angle from the aperture center ray angle and the aperture periphery ray angle at the time of actual photographing, and parameters relating to the iris diameter,
The first calculation means relates to a light beam center ray angle and an aperture diameter of the photographing condition when the photographed image data is acquired, which is calculated by the control means among the correction terms stored in the first storage means. The imaging apparatus according to claim 1, wherein the correction term of the captured image data is calculated by interpolation using a correction term close to the parameter.
撮影画像データの信号値の比を補正する為の補正項を計算する
ことを特徴とする請求項１乃至請求項３のいずれかに記載の撮像装置 The second calculation means, from the adjustment image data acquired by shooting the reference subject,
Imaging device according to any one of claims 1 to 3, characterized in that to calculate the correction term for correcting the ratio of the signal value of the photographed image data
前記第１記憶手段は、前記第２計算手段が計算したブロック毎のゲインの集合である補正項を、調整画像データを取得した際の前記撮影条件に対応させて記憶する
ことを特徴とする請求項４に記載の撮像装置。 The second calculation means divides adjustment image data acquired by photographing a reference subject into a plurality of blocks, calculates a gain for each block, and sets a correction term that is a set of gains for each block in advance. Calculate
The first storage unit stores a correction term, which is a set of gains for each block calculated by the second calculation unit, in association with the photographing condition when the adjusted image data is acquired. Item 5. The imaging device according to Item 4 .
ことを特徴とする請求項４又は請求項５に記載の撮像装置 Subject serving as the reference, the image pickup apparatus according to claim 4 or claim 5, wherein the luminance and the color is uniform surface
前記補正手段は、前記第１計算手段が算出した撮像素子の特性に起因する撮像面の受光特性の非均一性についての補正項を用いて補正を行う
ことを特徴とする請求項１乃至請求項６のいずれか一項に記載の撮像装置。 The first calculation means calculates a correction term for the non-uniformity of the light receiving characteristics of the imaging surface due to the characteristics of the imaging device;
2. The correction unit according to claim 1, wherein the correction unit performs correction by using a correction term for non-uniformity of the light receiving characteristics of the imaging surface caused by the characteristics of the imaging device calculated by the first calculation unit. the imaging apparatus according to any one of 6.
前記第１記憶手段が前記撮像装置内に配置されていること
を特徴とする請求項１乃至請求項７のいずれか一項に記載の撮像装置。 It is an imaging device that can replace the lens optical system to be installed.
Imaging device according to any one of claims 1 to 7, characterized in that said first memory means is disposed within said imaging device.
前記第１記憶手段が装着するレンズ内に配置されていること
を特徴とする請求項１乃至請求項７のいずれか一項に記載の撮像装置。 It is an imaging device that can replace the lens optical system to be installed.
Imaging device according to any one of claims 1 to 7, characterized in that said first memory means is disposed within the lens to be mounted.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011109596A JP5848027B2 (en) | 2011-05-16 | 2011-05-16 | Imaging device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011109596A JP5848027B2 (en) | 2011-05-16 | 2011-05-16 | Imaging device |
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| Publication Number | Publication Date |
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| JP2012244239A JP2012244239A (en) | 2012-12-10 |
| JP2012244239A5 true JP2012244239A5 (en) | 2014-06-26 |
| JP5848027B2 JP5848027B2 (en) | 2016-01-27 |
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